You really don't need heavyweight long underwear for most of the winter. That's why DAKINE made the Lightweight Sylvan Long Underwear Bottom. The Sylvan insulates without bulk for soft, all-day, forget-it's-even-there comfort.

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Frozen sweat can turn a bottomless day into a miserable, nipple-deep slog through the snow. Stay dray and ride longer thanks to the 686 MenAAAAAA 1/2s Direct Base Layer Bottom.

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When senor weatherman says that it's going to be icy-cold and nipple-deep, put on the Burton Lightweight Pant under your shell and prepare to dominate the gondola.

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Before winter takes over for good, go out and see the brilliant fall colors with The North Face Light Tight as a baselayer.

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Wear the Helly Hansen Men's Fly Pant long underwear for aerobic activities in cool weather.

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Layer the Under Armour Men's Base 1.0 Leggings under ski-shell pants in the spring and wind-blocking running pants in the late fall.

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The wicking Helly Hansen Men's 3/4 Pants stop above your calves, so you don't have another layer in your already-tight ski boots.

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Use the Marmot Men's Lightweight Bottom as your everyday insulating base layer. Polartec Power Dry wicks moisture away to keep you warm and dry in the winter.

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When you want to feel sexy, you head up the trail with the Patagonia Meni 1/2s Capilene 1 Bottom on under your pants.

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The Mammut Men's All-Year 3/4 Pant gives you four-season moisture management for everything from backpacking to backcountry skiing.

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